双引号字符串转义节点eval javascript

Question

I have a node file with this content inside: 我有一个节点文件，其中包含以下内容：

console.log("hello \"\"world")

When I log this I get: 当我登录时，我得到：

hello ""world

I would like to put this in node's -e (eval) flag. 我想把它放在节点的-e（eval）标志中。

I'm conceptually not undestanding how I could "clean" this string so that it would give the same output. 从概念上讲，我并不理解如何“清理”此字符串，以便产生相同的输出。

node -e "console.log(\"hello \\"\\"world\")"
hello \world

This works but adds an extra slash 这有效，但增加了一个斜线

What would I have to do with the contents of the eval to make it valid and work as expected? 为了使eval有效并按预期工作，我将如何处理它的内容？

Answer 1

You need two more slashes: 您还需要两个斜杠：

node -e "console.log(\"hello \\\"\\\"world\")"

Both the \\ and the " need to be escaped. \\和"需要转义。